ASTM B320 is the ASTM standard titled Standard Practice for Preparation of Iron Castings for Electroplating. It provides a technical framework for preparing iron castings before plating so the finished surface is more suitable for subsequent coating processes. For buyers, engineers, and quality teams, this matters because surface preparation is often a critical step in achieving dependable adhesion, appearance, and overall plating performance on cast iron parts.

Purpose of ASTM B320

The purpose of ASTM B320 is to guide the preparation of iron castings for electroplating in a consistent and repeatable way. As a standard practice, it is focused on the preparatory steps that support successful plating rather than on the plating bath itself. This makes it a useful reference for manufacturers and finishers who need a common technical basis for surface readiness, process control, and more reliable electroplating results on iron castings.

Common use cases of ASTM B320

ASTM B320 is commonly used when iron castings are being prepared for an electroplated finish in production or finishing operations. It may support foundries, plating shops, and parts suppliers that handle cast iron components where surface condition affects downstream coating quality. The standard is especially relevant in workflows that require clear preparation steps before plating, helping teams align on handling, cleaning, and readiness expectations for cast parts.

Why ASTM B320 matters

ASTM B320 matters because preparation can strongly influence the success of electroplating on iron castings. Using a recognized ASTM standard helps improve consistency across jobs, supports quality control, and gives procurement and engineering teams a common reference for technical requirements. It may also reduce rework and material loss by helping identify whether castings are adequately prepared before they enter the plating process, which can lower risk in finished-product evaluation.

• Preparation guidance for iron castings
• Support for electroplating readiness
• Useful for process consistency and quality control
• Applicable to cast parts finishing workflows